Bonsoir à tous j'ai un exercice de math à faire pouvez-vous m'aider s v p merci d'avance voilà
D E F est un triangle tel que: D E = 3,5 cm, D F = 2,1 cm et E F = 2,8 cm. prouver que le triangle D E F est un rectangle

By: USER6261
26 Agustus 2025 mathematiques 5 minutes
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Question

Grade: Education Subject: mathematiques
Bonsoir à tous j'ai un exercice de math à faire pouvez-vous m'aider s v p merci d'avance voilà
D E F est un triangle tel que: D E = 3,5 cm, D F = 2,1 cm et E F = 2,8 cm. prouver que le triangle D E F est un rectangle
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Answer (490)

Best Answer
(117)
3,5² = 2,1² + 2,8²

d'après la réciproque du théorème de Pythagore, le triangle DEF est rectangle
en F
Answered on 26 Agustus 2025

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